148 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



feeding also on White Willow (Salix lasiolejns Bentham) in which 

 the larvae probably also live. 



This species is closely allied to fuhninans and populi, and all three 

 species are confused in collections under niveiventris, however, 

 niveiventris is a more opaque species. 



46. AGRILUS FULMINANS, new species 

 Figure 33 



Male. — Form resembling that of niveiventris Horn, strongly shin- 

 ing, and scarcely flattened above; head and pronotum bronzy green, 

 the former usually more greenish ; elytra varying from green through 

 olivaceous to a bright cupreous, with a more or less distinct purplish 

 tinge; beneath bronzy green. 



Head with the front rather narrow, slightly convex, about equal 

 in width at bottom and top, the lateral margins arcuately expanded 

 at middle, and with a narrow, longitudinal groove extending from 

 the occiput to middle of front; surface coarsely, densely punctate, 

 more sparsely on occiput, and sparsely clothed with moderately 

 long, semierect, whitish hairs; epistoma slightly transverse between 

 the antennae, and broadly, deeply arcuately emarginate in front; 

 antennae extending slightly beyond middle of pronotum, serrate 

 from the fourth joint, and outer joints about as wide as long; eyes 

 large, elongate, and equally rounded above and beneath. 



Pronotum nearly one-half wider than long, vaguely narrower at 

 base than apex, and widest at middle or along apical half; sides 

 vaguely, arcuately rounded or nearly parallel from apical angles to 

 behind middle, then strongly narrowed to posterior angles; when 

 viewed from the side the marginal carina is strongly sinuate, the 

 submarginal carina feebly sinuate, the two carinae rather widely 

 separated anteriorly, and connected to each other behind the middle ; 

 anterior margin strongly sinuate, and the median lobe broadly, 

 arcuately rounded; base feebly, broadly emarginate at middle of 

 each elytron, the median lobe feebly rounded, and subtruncate in 

 front of scutellum; disk moderately convex, with a broad, shallow 

 depression in front of scutellum, a small, round depression on each 

 side of middle at apical third, a broad, moderately deep depression 

 on each side along lateral margin, and with sharply defined, arcuate 

 prehumeral carinae; surface densely granuloses densely but not 

 deeply, transversely rugose, sparsely punctate between the rugae, 

 and sparsely clothed with very short, inconspicuous hairs. Scutel- 

 lum strongly, transversely carinate, and the surface finely, densely 

 reticulate. 



Elytra slightly wider than pronotum at base, and about equal in 

 width at base and behind middle; sides nearly parallel for a short 



